4 research outputs found
How to Determine the Pion Cloud of the Constituent Quark
We calculate the differential cross section for semi-inclusive pion
production in electron proton reactions using a model where the physical quark
fluctuates with some probability to quark plus pion. The kinematic regions for
a determination of this `pion cloud' are evaluated.Comment: 28 pages, including 10 figures; gzipped, uuencoded postscrip
Mechanism of the anionic polymerization of methyl methacrylate initiated by tetramethylammonium-triphenylmethide in tetrahydrofuran
Measurement of the spin structure of the deuteron in the DIS region
We present a new measurement of the longitudinal spin asymmetry Ad and the spin-dependent structure function g(1)(d) of the deuteron in the range 1 < Q(2) < 100 GeV2 and 0.004 < x < 0.7. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarised muon beam and a large polarised (LiD)-Li-6 target. The results are in agreement with those from previous experiments and improve considerably the statistical accuracy in the region 0.004 < x < 0.03. (c) 2005 Elsevier B.V. All rights reserved